[Bug c/77292] Spurious "warning: logical not is only applied to the left hand side of comparison"

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77292

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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           Keywords|                            |diagnostic

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Well,

  // Make it obvious that these are booleans.
  a = !!a;
  b = !!b;

this isn't visible to the compiler when it analyzes

  return !a == b;

to warn.  Your example is very specific and unlike from real code so are you
complaining about

  return !a == b;

warning even when it is not immediately preceeded by a a = !!a; stmt?  Then
we've discussed this to death already.